# IBST vs AirSync Sender

The clearest difference is update cadence: AirSync Sender at monthly against IBST's every 5 months. AirSync Sender also leads on device support (4 vs 2) and iOS requirement (13.0 vs 16.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

IBST ships an update every 5 months, AirSync Sender monthly. The most recent releases landed on December 12, 2025 and September 17, 2026 respectively.

## The numbers

| Metric | IBST | AirSync Sender |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.8 (5 ratings)](https://appshunter.io/ios/app/airsync-sender/id6453759985/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | — | Free |
| Size | 57 MB | 82 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [PHM BUSINESS SOFTWARE CORP.](https://appshunter.io/developer/1794974768) | [ViewSonic_International](https://appshunter.io/developer/871648106) |

## What reviewers say

### IBST

[App page](https://appshunter.io/ios/app/ibst/id1596685171)

**Features:** macOS Compatibility

**In-app purchases:** none


### AirSync Sender

[App page](https://appshunter.io/ios/app/airsync-sender/id6453759985)

Wirelessly share your device's screen to compatible interactive displays or multiple iOS devices. Facilitates efficient multi-person communication and collaboration through features like split screen and annotation.

**Highlights:** WebRTC screen sharing, QR code sharing, Split screen support, Moderator mode, Remote control, Annotation, Screen mirroring

**In-app purchases:** none


## Frequently asked questions

### Is IBST free?

IBST is free to download, with no in-app purchases.

### Is AirSync Sender free?

AirSync Sender is free to download, with no in-app purchases.

### Do IBST or AirSync Sender have ads?

Neither IBST nor AirSync Sender shows ads.

### Which is updated more often, IBST or AirSync Sender?

IBST ships an update every 5 months, and AirSync Sender monthly. Most recently, IBST was updated on December 12, 2025 and AirSync Sender on September 17, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*